135 results about "Lower Jaw Tooth" patented technology

The invention relates to the technical field of orthodontics, and discloses a design method of an invisible tooth socket for correcting locking teeth, which comprises the following steps: generating a digital dental model through dental scanning data; on the basis of a digital tooth jaw model, an orthodontic locking tooth invisible tooth socket with an unlocking state is designed, the orthodontic locking tooth invisible tooth socket comprises a tooth socket body, the tooth socket body is provided with a functional part corresponding to the position of the tooth in the locking state, and the functional part is used for driving one or more teeth in the locking state to move to the normal position; a first supporting part and a second supporting part of the invisible tooth socket for correcting and correcting the locking teeth are determined, the first supporting part is arranged on the tooth socket occlusal surface adjacent to the functional part, the second supporting part is arranged on the side, opposite to the first supporting part, of the tooth socket occlusal surface, the tooth socket occlusal surface corresponds to the occlusal surface of the teeth, and the second supporting part is arranged on the side, opposite to the first supporting part, of the tooth socket occlusal surface; the first supporting part and the second supporting part are used for supporting the occlusal surface of the upper jaw tooth socket body and the occlusal surface of the lower jaw tooth socket body for a certain distance.

The invention relates to the technical field of oral medical instruments, and particularly provides a customized joint jaw position appliance and a manufacturing method thereof.The customized joint jaw position appliance comprises an appliance body, the appliance body comprises an upper jaw tooth occlusion sleeve and a lower jaw tooth occlusion sleeve, and a first occlusal surface of the upper jaw tooth occlusion sleeve is effectively occluded with a second occlusal surface of the lower jaw tooth occlusion sleeve; the guide inclined surface is arranged on the inner side of the anterior tooth area of the appliance body; the upper jaw blocking body and the lower jaw blocking body are respectively arranged on an occlusal surface, a cheek side surface or a lingual side surface of a premolar region on two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve; the upper jaw blocking table and the lower jaw blocking table are respectively arranged on the occlusal surface, the cheek side surface or the tongue side surface of the molar areas on the two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve, and are integrally connected with the appliance body to form a first occlusal surface and a second occlusal surface. According to the customized joint jaw position appliance, the disc-condylar relationship can be more accurately recovered according to the displacement condition of the joint disc of a patient through double-jaw coordination and multi-region blocking design, the treatment period is shortened, and the prognosis stability is improved by matching with a chewing function.

The embodiment of the invention provides a dental system for occlusal adjustment and a generation method, the dental system for occlusal adjustment comprises N correction instruments for gradually realizing a correction plan step by step, each of the N correction instruments is provided with an upper jaw shell-shaped body for accommodating an upper jaw dentition and a lower jaw shell-shaped body for accommodating a lower jaw dentition, the N upper jaw shell-shaped bodies are respectively provided with an adjusting part for opening the occlusion height of anterior teeth, the N lower jaw shell-shaped bodies are respectively provided with a geometric structure for applying a pressing force to the lower jaw teeth, and the N lower jaw shell-shaped bodies are used for completing the pressing movement in the correction plan step by step for the teeth in the anterior tooth area of the lower jaw. The N adjusting parts enable the relative position relation of the upper and lower jaw teeth in the anterior tooth area to be consistent in the vertical direction in the correction process, and N is a natural number greater than or equal to 2.

The invention discloses a complete denture generation method, device and equipment and a storage medium. The complete denture generation method comprises the following steps: acquiring a plurality of tooth feature points; determining a target false tooth model closest to the current patient in a false tooth model library; and determining an upper and lower jaw anterior tooth occlusion relationship of the target false tooth model. Determining the occlusal relationship between upper and lower jaw posterior teeth of the target false tooth model; determining an upper jaw tooth arrangement termination line and a lower jaw tooth arrangement termination line of the target false tooth model; and based on the adjustment information, finely adjusting the occlusion relationship between the upper and lower jaw anterior teeth, the occlusion relationship between the upper and lower jaw posterior teeth, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line, and determining the final complete denture. Therefore, a target denture model closest to the anterior tooth arrangement information of the current patient is determined in a denture model library, and the target denture model is further adjusted based on the anterior tooth occlusion relation between the upper jaw and the lower jaw, the posterior tooth occlusion relation, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line of the current target denture model, so that a final complete denture is obtained.

The utility model discloses a dental instrument for stopping snore, which comprises an upper jaw shell-shaped dental instrument worn on the upper jaw dentition of a patient, a lower jaw shell-shaped dental instrument worn on the lower jaw dentition of the patient, and a first mounting part arranged on the cheek side of the upper jaw shell-shaped dental instrument and close to the anterior teeth, the connecting piece is arranged on the cheek side of the lower jaw shell-shaped dental instrument and is close to the rear teeth; wherein the first mounting part comprises a convex column which convexly extends away from the cheek side surface of the upper jaw shell-shaped dental instrument; the connecting piece comprises a hooking part, an elastic part and a second mounting part which are connected in sequence and hooked with the first mounting part on the same side; the connecting piece is movably connected to the cheek side surface of the lower jaw shell-shaped dental instrument through the second mounting part; and the hooking part and the convex column hook enable the lower jaw of the patient to move forwards to a preset position in a sagittal manner, so that the airway of the patient is opened, and the snore of the patient is inhibited.

The utility model discloses a dental component which comprises a first shell-shaped dental instrument and a second shell-shaped dental instrument, the first shell-shaped dental instrument comprises a first shell-shaped dental instrument body and a first acting part located on a first occlusal surface of the first shell-shaped dental instrument body; the second shell-shaped dental instrument comprises a second shell-shaped dental instrument body and a second acting part located on a second occlusal surface of the second shell-shaped dental instrument body, the first acting part comprises a first guide part and a first jaw pad part which are arranged at an interval, and the second acting part comprises a second guide part and a second jaw pad part; when the upper jaw teeth and the lower jaw teeth are in a complete occlusion state, the first guide part and the second guide part interact to adjust the jaw position relation, and the first jaw pad part and the second jaw pad part interact to fix the position. According to the utility model, the height of a single jaw pad part can be reduced, so that the strength of the jaw pad part is improved, and the continuous extending length of the first acting part in the mesiodistal direction can be reduced, so that the strength of the first acting part is improved.

The utility model discloses a mandible isolation tongue block structure, which comprises two belt rings respectively sleeved on first molars on two sides of a mandible; the connecting rod is arranged on the tongue side, the two ends of the connecting rod are connected with the two bands respectively, and the connecting rod has a radian bent in the arrangement direction of the teeth of the lower jaw; the tongue block is arranged on the tongue side, and the tongue block is vertically arranged on the connecting rod and used for isolating tongue muscles. The mandible isolation tongue blocking structure designed by the utility model is an appliance capable of relieving the thrust of tongue muscles to the mandible. The tongue blocking structure for isolating the lower jaw is convenient and fast to use, can effectively eliminate the cause of the reverse jaw problem caused by the low tongue position, is very suitable for being used by children with poor habits of the low tongue position, has high clinical value, and is suitable for clinical popularization and use.

The present application relates to the technical field of dental medicine, in particular to a mandibular edentulous implant guiding device and an implant positioning and implanting method using the same, the implant guiding device comprising a first pin guiding ring, a rotating structure and two second pin guiding rings, the two second pin guiding rings being rotatably connected to the first pin guiding ring through the rotating structure, and the first pin guiding ring being located between the two second pin guiding rings; a planting guiding ring is arranged between the second pin guiding ring and the rotating structure, and the distance between the first pin guiding ring and the two planting guiding rings is 9-11 mm respectively. The first pin guiding ring is filled with a bone site pin, and the bone site pin is used for positioning; then, another bone site pin is used for positioning after adjusting the second pin guiding ring according to the shape of the human mandibular alveolar ridge, so that the distance between the planting guiding ring and the first top guiding ring is unchanged, the human mandibular alveolar ridge can be aligned for drilling and implanting the implant, and the operation quality and efficiency are improved.

The present invention relates to the technical field of medical devices, and particularly relates to a positioning structure and method for osteotomy and bone reconstruction. The positioning structure for osteotomy and bone reconstruction includes a positioning assembly; the positioning assembly includes an upper jaw positioning guide plate, a lower jaw osteotomy guide plate, and a reconstructed bone positioning guide plate; the upper jaw positioning guide plate has an upper jaw occlusal surface, an upper N-shaped splicing mechanism, a plurality of positioning holes, and a plurality of fixing holes; the lower jaw osteotomy guide plate has a lower N-shaped splicing mechanism, a connection area, a lower jaw lower edge indication area, and an osteotomy guiding surface; the reconstructed bone positioning guide plate includes an indication guide plate and a plurality of C-shaped connecting rods; after the upper jaw positioning guide plate is fixed, the insertion and cooperation of the two lower jaw guide plates can guide all the key steps of the operation, without repeated disassembly and adjustment, and maintain accurate positioning and intermaxillary distance to facilitate subsequent implant restoration; based on the upper jaw dentition, the lower jaw osteotomy position and the reconstructed bone position can be positioned, and it can be applied to patients with tooth loosening or lower jaw dentition loss caused by various reasons.

One aspect of the invention provides a computer-implemented method for generating a target position of a selected tooth in a selected direction. The method comprises the following steps: acquiring a first three-dimensional digital model representing upper and lower jaw dentitions under an initial tooth layout of a patient; obtaining a side position film of the patient; carrying out registration on the first three-dimensional digital model and the side position sheet; using a trained first deep neural network to predict a target position of a selected tooth of a first dentition in the lateral position film in a selected direction, wherein the first dentition is the maxillary dentition or the mandibular dentition; and generating a target position of the selected tooth of the first dentition in the first three-dimensional digital model in the selected direction based on the target position of the selected tooth of the first dentition in the lateral position piece in the selected direction and the registration result.

The dental assembly comprises a first tooth socket and a second tooth socket which correspond to maxillary teeth and mandibular teeth respectively, and a plurality of retention structures, the first tooth socket is provided with a first buccal surface and a first lingual surface which are oppositely arranged, and the second tooth socket is provided with a second buccal surface and a second lingual surface which are oppositely arranged; the retention structures are connected with the first buccal surface and the second buccal surface, or the retention structures are connected with the first lingual surface and the second lingual surface, the dental assembly comprises a first half jaw and a second half jaw which are positioned on two sides of a dental midline, and the plurality of retention structures comprise a first retention structure and a second retention structure which are positioned on the first half jaw. The first retention structure is closer to the tooth midline than the second retention structure. According to the invention, relative rotation and relative movement of the first tooth socket and the second tooth socket are limited through cooperation of the first retention structure and the second retention structure, so that the relative position between the first tooth socket and the second tooth socket can be effectively controlled, and the correction effect can be effectively improved, such as in an application scene of jaw position adjustment.

The present application provides a kind of dentition correction mouthpiece and its manufacturing method, which can be used for dental correction.The manufacturing method needs to obtain the tooth position configuration map of upper jaw and lower jaw, read and display the tooth position configuration map by dental software, connect the multiple fossae of upper jaw teeth into the arc line of upper occlusal line, connect the multiple cusps of lower jaw teeth into the arc line of lower occlusal line, generate a correction arc line through the upper and lower occlusal lines, then generate the upper jaw correction slot and the lower jaw correction slot corresponding to the cuspid-fossa, and finally generate the upper and lower jaw corresponding parts of the dentition correction mouthpiece to correct the problem of misaligned dentition of dental patients.

The utility model discloses a rubber barrier perforated plate, which belongs to the technical field of medical equipment and comprises a transparent plate body, a positioning area is arranged on the transparent plate body, the positioning area is consistent with a rubber barrier in size and shape, a cross center line is arranged in the positioning area, and the positioning area is divided into four quadrants by taking the cross center line as an xy coordinate system. A right upper jaw tooth position hole and a left upper jaw tooth position hole are formed in the first quadrant and the fourth quadrant respectively, and a right lower jaw tooth position hole and a left lower jaw tooth position hole are formed in the second quadrant and the third quadrant respectively. Due to the fact that the plate body is transparent, finding of corresponding tooth position holes and adjustment of the relative position of the punching plate and the rubber barrier are very convenient, meanwhile, punching can be conducted on the rubber barrier on the corresponding tooth position holes in the transparent plate body in combination with the punching technology, the influence of the thickness, the color and the transparency of the rubber barrier is avoided, and the punching effect is good. And the influence of ambient light is relatively small.

The utility model provides a chew which comprises at least two meshing parts, and the at least two meshing parts are sequentially arranged in the length direction of the chew. And the occlusion part extends along the direction which forms an included angle with the length direction of the chew. The at least two occlusion parts enable different tooth areas to correspond to different occlusion parts, and acting force can be applied to the orthodontic appliance more accurately through the chews; the extension direction of the occlusion part is beneficial to guiding the axial orientation of the upper and lower jaw teeth during occlusion, and the arrangement along the length direction of the chew enables the structure of the chew to be compact.

The present invention discloses an intermaxillary traction tooth surface fixing device, its digital manufacturing method and application. The fixing device includes an upper jaw tooth surface fixing component applicable to the upper jaw and a lower jaw tooth surface fixing component applicable to the lower jaw. The upper jaw tooth surface fixing component includes a tooth surface bonding attachment A bonded to the labial tooth surfaces of each tooth in the upper jaw, a connecting rod A connecting two adjacent tooth surface bonding attachments A, and further includes a traction hook A extending towards the gingival side and arranged on the connecting rod A. The lower jaw tooth surface fixing component includes a tooth surface bonding attachment B bonded to the labial tooth surfaces of each tooth in the lower jaw, a connecting rod B connecting two adjacent tooth surface bonding attachments B, and further includes a traction hook B extending towards the gingival side and arranged on the connecting rod B.

The invention provides an occlusion induction appliance for a tooth replacement period, an orthodontic system for guiding jaw growth in the tooth replacement period and a design method of the orthodontic system. The occlusion induction appliance for the tooth replacement period comprises an upper jaw tooth socket and a lower jaw tooth socket, a lower jaw brace; the intermaxillary connecting body is positioned between the occlusal surfaces of the back tooth areas of the upper jaw tooth socket and the lower jaw tooth socket; wherein the upper jaw tooth socket and the lower jaw tooth socket form a rigid integral structure which cannot move relatively on an occlusal surface through the intermaxillary connector; the intermaxillary connecting body has a preset thickness so as to open occlusion contact of upper and lower anterior teeth in a wearing state, and the intermaxillary connecting body is configured to lock the lower jaw tooth socket at a preset three-dimensional space position relative to the upper jaw tooth socket body; when the occlusion induction appliance for the tooth replacement period is worn, the upper dentition and the lower dentition serve as integral interactive anchorage, and the occlusion force is converted into the orthodontic force acting on the dentition or the jaw bone.

According to one embodiment, disclosed are a method, device, and recording medium for providing border lines. The method for providing border lines is characterized in that: scan data for the oral cavity is obtained; the scan data is determined on the basis of outlines illustrating the uppermost end of the upper jaw gum or the lowermost end of the lower jaw gum; border lines used for oral denture modeling are determined using the scan data; the border lines are updated on the basis of points to be updated on the border lines; and the updated border lines are displayed.

The utility model belongs to the technical field of oral medicine, and particularly relates to a split type jaw position relation recording tray which comprises an upper tray body and a lower tray body, and the upper tray body is detachably connected with the lower tray body. Arc-shaped grooves are prefabricated in the upper surface of the upper tray body and the lower surface of the lower tray body, and silicon rubber is placed in the arc-shaped grooves. The split type design is adopted, the tray is divided into the upper tray and the lower tray, the position of an occlusal plane can be accurately determined, and the boundary of upper and lower jaw teeth can be guided and arranged in the later period and cannot be obtained through an existing integrated median jaw tray; according to the utility model, the split type jaw position relation recording tray design is adopted, so that the position information about 1mm below the upper lip can be accurately obtained, and an accurate reference is provided for subsequent determination of the position of the lower edge of the upper anterior incisor.

The present invention relates to an artificial intelligence-based dentition matching and jaw bone segmentation method, system and medium, including the following steps: S1, constructing a dentition matching algorithm under constrained movement to obtain an objective function for matching a digital dentition model with the dentition of a skull model; S2, minimizing the objective function to obtain an automatic matching method for the upper and lower dentitions with the dentition of the skull model, and the translation and rotation methods of the upper and lower dentitions. The jaw bone segmentation method includes: using this dentition matching method to replace the tooth part on the three-dimensional skull model with the upper and lower dentitions of the digital dentition model; then automatically segmenting the condyles of the three-dimensional skull model to complete the automatic segmentation of the jaw bone of the three-dimensional skull model. This application constructs an intelligent dentition matching method and jaw bone segmentation method for orthognathic surgery, which can automatically complete the important links of jaw bone segmentation and dentition matching in digital orthognathic surgery design by computer, so as to reduce the workload of clinicians and improve work efficiency.

The utility model relates to an orthodontic operation occlusion guide plate based on an invisible orthodontic device, which comprises a middle occlusion guide plate and a terminal occlusion guide plate, the middle occlusion guide plate is used for determining the middle occlusion relationship between an upper jaw tooth bone section and a lower jaw tooth bone section at an initial position, and the terminal occlusion guide plate is used for determining the terminal occlusion relationship between the upper jaw tooth bone section and the lower jaw tooth bone section. The middle occlusion guide plate is integrally formed by a first upper contact surface, a first lower contact surface and a connecting part, a first upper tooth occlusion position is arranged on the first upper contact surface, a first lower tooth occlusion position is arranged on the first lower contact surface, and the end occlusion guide plate is integrally formed by combining a second upper contact surface and a second lower contact surface; a second upper tooth occlusion position is arranged on the second upper contact surface, and a second lower tooth occlusion position is arranged on the second lower contact surface. According to the utility model, the anterior tooth area is not fully covered, the resistance and difficulty during dislocation and in-position are reduced, the operation time is saved, the observation window is arranged, the situation that the dentition is not in place is avoided, and the operation precision is ensured.

A teeth cleaning system, which provides improved coverage or brushing area. The system includes an actuated tray comprises brushing elements. The brushing elements may be positioned to engage the front, rear, and top surfaces of the upper and lower jaw teeth. The actuation may be configured to oscillate the tray in a lateral direction which may brush all the surfaces of teeth simultaneously. Some embodiments include a higher density of bristles which increases the effectiveness of brushing. In addition, aspects of the system reduce the time spent brushing teeth.

The invention discloses a posterior tooth arrangement method and device based on measurement of an alveolar ridge intercrest line angle and a medium. The method comprises the following steps: acquiring an occlusion record of a patient; according to the occlusion record of the patient, establishing an upper and lower jaw edentulous jaw three-dimensional model of the patient; determining an occlusal plane of the three-dimensional model, and performing preliminary tooth arrangement on the three-dimensional model according to the occlusal plane; carrying out alveolar ridge intercrest line angle measurement on the three-dimensional model after preliminary tooth arrangement; and modifying the three-dimensional model after preliminary tooth arrangement based on an alveolar ridge intercrest line angle measurement result to obtain a posterior tooth arrangement scheme. According to the method, the included angle between the connecting line of the upper and lower jaw alveolar ridges and the occlusal plane is used as a basis for judging the arrangement mode of the back teeth, three-dimensional reconstruction is carried out on the oral cavity of the patient, digital measurement of the alveolar ridge intercrest line angle of the patient is completed in a computer, and the generated arrangement scheme of the back teeth can recover the relation between the upper and lower jaws of the patient more reasonably; the retention, the stability and the chewing performance of false tooth wearing are improved.

The present invention belongs to the technical field of oral orthodontics, and specifically relates to a tooth movable retainer, comprising an outer dental arch retainer, an inner dental arch retainer and a steel wire body, wherein the two ends of the outer dental arch retainer are respectively connected and fixed to the two ends of the inner dental arch retainer through the steel wire body, and the dental arch grooves formed by the outer dental arch retainer and the inner dental arch retainer on the horizontal plane retain the upper and lower dental arches in the dental arch grooves at the same time, and the contact surfaces of the outer dental arch retainer and the inner dental arch retainer with the dental arch teeth are smooth, and the retainer is not affected by the undercut of the teeth, and is convenient to remove, thereby extending the service life of the retainer, and the steel wire body placed between the upper and lower mandibular mucosa can prevent the upper and lower dental arch teeth from biting each other, and reduce the problem of the upper and lower teeth becoming loose due to the bite force, and the retainer has a simple and firm structure, is easy to make, is easy to clean, has a beautiful appearance, and has a slight foreign body sensation.

A snoring prevention mouthpiece for reducing snoring, the mouthpiece comprising a body sized and shaped to be placed in a human mouth, with the upper and lower sets of teeth pressed against two outer walls connected to each other by connecting side walls, and an internal reinforcing matrix located between the inner walls of the body, the inner walls of the body facing each other, so that the internal reinforcing matrix allows communication between the outer walls and allows the body to move when the set of teeth moves relative to each other.

The invention discloses a manufacturing method of an integrated fiber post core, which comprises the following steps: (1) acquiring oral data of a patient to prepare an upper and lower jaw dentition plaster model, preparing a defect model according to the upper and lower jaw dentition plaster model, and preparing a root canal; (2) acquiring a first silicone rubber pile way digital model by using a scanner; (3) carrying out trimming treatment on the first silicon rubber pile road digital model by utilizing software to obtain a second silicon rubber pile road digital model; and (4) scanning the plaster model by using a scanner to obtain a maxillary and mandibular dentition digital model, and merging the second silicone rubber stake way digital model and the maxillary and mandibular dentition digital model to obtain a second maxillary and mandibular dentition digital model with a stake way. And importing the second maxillary and mandibular dentition digital model into computer design software for post-core design to obtain an integrated post-core digital model, and importing the integrated post-core digital model into CAM equipment for milling to obtain an integrated fiber post-core.

The invention relates to the technical field of oral cavity plastic surgery, in particular to a manufacturing method of a digital buckle type guide plate for dental crown lengthening, which comprises the following steps of: 1, scanning an upper jaw dental arch and a lower jaw dental arch of a patient to obtain intraoral scanning data, recording an occlusion relationship at a maximum tooth tip staggering position, and exporting the data for later use; step 2, acquiring facial three-dimensional scanning data, alveolar bone and craniofacial structure data, digital facial arch data, mandibular position and mandibular movement parameters of the patient; 3, fitting various data to determine ideal gingival margin position parameters and bone trimming contour line parameters required in the operation; and 4, on the basis of the parameters determined in the step 3, buckle type guide plates are designed in design software, the buckle type guide plates comprise a gingival resection guide plate and an osteoplasty guide plate, and finally the buckle type guide plates are printed through a 3D printer. By implementing the buckle type guide plate prepared by the method, the stability, the accuracy, the operation convenience and the operation efficiency in the operation process of the dental crown extension surgery are remarkably improved.

The application discloses a virtual occlusion detection and design method based on intraoral three-dimensional scanning and relates to the field of oral prosthetics. The application comprises the following steps: acquiring complete upper and lower dental arch data and static occlusion data of a patient in a static state; acquiring a dynamic motion trajectory of teeth by using the static occlusion data to correspond to the position of the teeth in a lower jaw motion in real time; combining the complete upper and lower dental arch data in the static state and the lower jaw motion trajectory to complete motion trajectory integration; drawing a boundary along a crown gum margin and an adjacent contact area in the static dental arch data to obtain a single tooth by segmentation; taking a crown cheek side as a common area, registering the segmented single tooth data to occlusion data one by one to obtain occlusion data after tooth-by-tooth registration; and designing a prosthesis based on the dental arch data and the occlusion data after tooth-by-tooth registration. The application can obtain accurate static and dynamic occlusion data and greatly improves the precision and efficiency of prosthesis design and production through automatic virtual occlusion detection and virtual adjustment.

The invention relates to a method for providing a 3D-print data set of a dental model structure (100) to be mounted on an articulator (5), comprising: —providing an articulator data set of the articulator (5) on which the dental model structure (100) is to be mounted; —providing a dental situation data set which represents a dental situation of an upper jaw and / or a lower jaw, the dental situation data set including data to display the dental situation as a virtual representation of the dental situation on a display; —selecting at least one distance element (20) from a plurality of different predefined and / or prefabricated distance elements based on the articulator data set and the dental situation data set; —generating a connecting structure data set representing at least a virtual connecting structure (15) arranged between the virtual representation of the dental situation and a virtual representation of the at least one selected distance element; and —generating the 3D-print data set based on the dental situation data set and the connecting structure data set. Furthermore, the invention relates to a corresponding computer program product, a dental model structure, a mounting plate and a dental model system.

Methods and systems for repositioning teeth of a patient; which employ at least one appliance specific to the patient for placement in the patient's mouth during use. The appliance includes a polymeric shell having a cavity shaped to receive teeth of the upper jaw of the patient. The polymeric shell is integral to a polymeric segment shaped to cover the hard palate of the upper jaw of the patient. The shell is configured such that the appliance adjusts position of the teeth of the upper jaw of the patient during use. The segment is configured such that the appliance adjusts position of the hard palate of the upper jaw of the patient during use. One or more appliances can be configured to contact the teeth of the lower jaw and a mandibular bone portion disposed below the gingiva of the teeth of lower jaw and adjust position of the teeth and the mandibular bone portion of the lower jaw of the patient during use.

The oral cavity opening size adjusting device comprises a fixing frame and a measuring assembly, rotating seats are rotationally clamped to the two ends of the fixing frame correspondingly, through holes are formed in the rotating seats, a sliding rod and a threaded rod are slidably clamped in the two through holes correspondingly, and fixing blocks are fixedly connected to the bottom ends of the sliding rod and the threaded rod through longitudinal rods correspondingly; the measuring assembly comprises a guide rail connected between the two fixing blocks, a moving seat is slidably clamped on the outer side of the guide rail, and a pair of pneumatic rods are rotatably connected to one side, close to the guide rail, of the moving seat; the external shape of teeth of a patient can be measured by the measuring assembly and synchronized to the soft strip clamped in the shaping clamp, then the occlusion block is arranged in the extension direction of the soft strip and clamped to teeth of the lower jaw of the patient, and finally, the occlusion block is pulled through the fixing block so as to be matched with the fixing frame to open the oral cavity of the patient for auxiliary fixing.